Correct Answer: Heretic

Solution : The correct choice is the fourth option.

Heretic is the most appropriate word for someone who is against religion. A heretic is a person who holds beliefs that go against the established doctrines or teachings of a particular religious system.

The meanings of the remaining options are as follows:

• A poacher is someone who illegally hunts or catches a game, especially on someone else's property.
• A lunatic is a person who is considered mentally ill, insane, or extremely foolish.
• A bandit is an outlaw or a member of a gang engaged in robbery and other criminal activities.

Therefore, the correct answer is heretic.